Home / 10,719.36-14,777.19-7,356.90

Finding the Fourth Proportional to 10,719.36, 14,777.19 and 7,356.90

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Solution

The fourth proportional to 10,719.36, 14,777.19 and 7,356.90 is: 10,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.36 : 14,777.19 = 7,356.90 : x
  2. Step 2: Convert to fraction form
    10,719.36/14,777.19 = 7,356.90/x
  3. Step 3: Cross multiply
    10,719.36x = 14,777.19 × 7,356.90
  4. Step 4: Simplify right side
    10,719.36x = 108,714,309.11
  5. Step 5: Solve for x
    x = 108,714,309.11/10,719.36
  6. Step 6: Final answer
    x = 10,141.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.